Rotary pump



A. BEARDSLEE.

ROTARY PUMP.

APPLICATION FILED JAN-4,1921.

' RAWJYOB.

Patented Dec. 5 1922 9 SPEETSSHFET I E j, m.

F T U jaw/e12 601 14 165665. M M I A. BEARDSLEE.

ROTARY PUMP.

APPLICATION FILED 1AN .4,1921.

Patented Dec. 5, 1922.v

2 SHEETS-SHEET 2.

Jim 7917601". Q7& ZeczfidsZee r i Patented Dec. 5, 1922,

Y? STATES PATENT- ARBY BEARDSLEE, OF LIMA, MONTANA.

ROTARY PUMP.

Application filed January 4, 1921.

The present invention relates in general to pumps and has reference moreparticularly to a rotary pump of the centrifugal type for pumpingliquids: especially water and oil. 7

The primary object of the invention is to provide a compact, simple andefficient construction in pumps and particularly one in which thefriction parts may be lubricated to reduce friction to a minimum andprolong the life of the pump.

The invention possesses other features which will be referred to in thefollowing detailed description, with the novelty pointed out in thesubjoined claims.

In the accompanying drawings,

Figure 1 is an end view in elevation of one type of centrifugal pumpwith which the invention may be used;

Figure 2 is a cross-section on the line 2-2, Figure 3;

Figure 3 is a sectional View on 3-3, Figure 1;

Figure 4 is a sectional view on l-l, Figure 3;

Figure 5 is a detail perspective view of the cylinder block for theblades;

Figure 6 is a detail perspective view of the line the line one of theblades;

Figure 7 is a detail perspective view of one. of the ring bearings forthe blade pintles, and

Figure 8 is a detail perspective view of one of the arcuate-shapedblocks which 00- operate with the ring bearings.

Referring now to the drawings in detail, the pump may include a more orless conventional construction in so far as concerns the intake A, thestator B, the outlet C, the shaft D and the end plates E.

The stator may be made from a casting with the intake and outletcommunicating therewith from opposite sides and with suitable supportingfeet, as shown.

The shaft D extends through the casting transversely of the intake andoutlet, with stuffing glands F appropriately arranged at the open endsof the bearings G and H for the shaft. In some instances the shaftSerial No. 434,915.

need not extend through the casting, for as shown in Figure 3 the sameterminates in the relatively long bearing H. with a closure plate Iclosing the open end of the bearing. In lieu of this plate, the shaftmay pro ect past the bearing, with a stu'lhng gland such as F employed.

()il openings J may be arranged in the bearings G and H, with bushings Khaving small openings where oil may be introduced around the shaft.

Keyed to the shaft intermediate its ends, and housed within the castingis a cvlin der block the axis of which being arranged transversely tothe intake A and outlet C. Interior portions of this cylinder block maybe hollowed out as best shown in Figure 2 to reduce its weight, thesolid portions of the same, however. being provided with radial slots(6) which, according to the present showing. are four in number, each ofwhich is adapted to receive a blade (7) which is preferably of a lengthof that of the slots andv including outwardly extending pintles (8). Theblades are presentedrwithin their respective slots with the pintlespositioned inwardly or adjacent the axis of the block, and the sameproject outwardly on opposite sides parallel to the axis of the shaft.

As best shown in Figure 3, the opposite ends of the stator casing arereduced in transverse dimension to accommodate ring bearings-(9) atopposite ends of the block '(5). Each of the ring bearings includes anouter and inner annular member (10) and (11) respectively. the sides ofwhich are enclosed by annular ring plates (12). The

.ring members will be disposed eccentric of ject through the slots (14with the pintles of one bladepassing through the opening (15) and seatedin the opening such as (16) in the arcuate blocks; in other words, whilethe slots (1%) are provided in the plates (12), the blocks (13) all havecircular openings the diameter of which corresponding to the diameter ofthe pintles. The plates (12) may be fastened to the outer ring (10) byrivets (17), and in this connection it is to be noted from Figure 4 thatthe rivets passing through the arcuate block (13) are arranged toreceive the pintles presented through the openings (15).

From the above it will be noted that one of the blades is fixed to thering bearings (9) to an extent that it rotates eccentrically with thering bearings, whereas the slots (14) for the other pintles permit theseblades to rotate concentrically of the shaft.

A wearing plate with which the pointed ends and blades have awvipingcontact is provided in the bottom of the stator casing, as shown inFigure 2.

Instead of duplicating the plate (12) on each side of the ring bearing,the opposite face of the same may be cast as a part of the outer ring(10). This is shown in Figure 3.

The ring bearings are adapted to rotate in suitable bushings, as bestshown at (18) in.

Figures 3 and 4.

While the co-operative relationship of the parts operates to provide amost practical construction in pumps, it is really the provision of thering bearings which represents the salient features of the principleinvolved, in that they may be so conveniently lubricated, which hasheretofore been impossible with pumps of this general type. From Figure3 it Wlll be readily appreciated how oil may be introduced throu h theoil openings (19) through the bushings (18) and distributed over thesurface of the outer rings (10) of the ring bearings. This is thelocation where friction will be the greatest and where wear will be themost severe.

I claim:

1. In a rotary pump, a shaft, a cylinder block keyed to the shaft, aplurality of radial slots in said block, a blade to work in each slot,each blade having pintles extending beyond opposite ends of the block,and a ring bearing eccentrically mounted at either end of the blockco-operating with the pintles so as to be rotated by the same and toimpart radial motion to the same, said bearing ring being provided withone perforation fitting snugly over one pintle and with a plurality ofarcuate slots engaging the other pintles so as to allow of thesimultaneous engagement of the pintles by two eccentric rings.

2. In a rotary pump, a shaft, a cylinder block keyed to the shaft, aplurality of radial slots in said block, a blade to work in each slot,each blade having pintles extending beyond opposite ends of the block,and a ring bearing ecentrically mounted at either end of the blockco-operating with the pintles so as to be rotated by the same and toimpart radial motion to the same, saidbearing ring being provided withone perforation fitting snugly over one pintle and with a plurality ofarcuate slots engaging the other pintles so as to allow of thesimultaneous engagement of the pintles by two eccentric rings, and anindividual arcuate bearing member for each pintle slidably supported inthe ring so as to cover the slots.

ARBY BEARDSLEE.

